import java.io.EOFException;
import java.io.IOException;
import java.util.Random;


public class ExercicioExtra3 {

	static Random rand = new Random(); 
	  static int pRand(int mod) {
	     return Math.abs(rand.nextInt()) % mod + 1;
	  }

	  public static void main(String[] args) {
	    System.out.println("Primeiro try");
	    try {
	      System.out.println("Segundo try ");
	      try {
	        System.out.println("Terceiro try ");
	        try {
	          int sel = pRand(4);
	          System.out.println("Numero randomico gerado:" + sel);
	          switch(sel) {
	      	  default: 
	            case 1: throw new NumberFormatException();
	            case 2: throw new EOFException();
	            case 3: throw new NullPointerException();    
	            case 4: throw new IOException();    
	          }
	        } catch (EOFException e) {
	          System.out.println("Trata terceiro try");
	        }
	      } catch (IOException e) {
	         System.out.println("Trata segundo try ");
	      }
	    } catch (NullPointerException e){
	      System.out.println("Trata primeiro try");
	    }
	  }

}
